Question

F(r)=3.14r2 what is f(5)

Answer 1

The value of f(5) in the given function F(r) = 3.14r^2 is 78.5.

Step-by-step explanation:

To find the value of f(5) in the given function F(r) = 3.14r^2, we substitute 5 for r in the equation. Therefore,

f(5) = 3.14(5)^2 = 3.14(25) = 78.5

Answer 2

f^-1(R)=0.56433264/R,-0.5633264/R

took me a while to get this answer..hope i helped!